<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片内容区域 -->
    <el-card class="box-card">
      <!-- 输入框 -->
      <el-input placeholder="请输入要搜索的姓名" v-model="queryInfo.query" clearable @clear="getUserList()">
        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
      </el-input>
      <!-- 添加用户按钮 -->
      <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
      <!-- 内容表格 -->
      <template>
        <el-table :data="userList">
          <el-table-column type="index" label="#" width="50px"></el-table-column>
          <el-table-column prop="username" label="姓名"></el-table-column>
          <el-table-column prop="email" label="邮箱"></el-table-column>
          <el-table-column prop="mobile" label="电话"></el-table-column>
          <el-table-column prop="role_name" label="角色"></el-table-column>
          <!-- 用户状态 -->
          <el-table-column prop="mg_state" label="状态">
            <template v-slot="scoped">
              <el-switch @change="userStateChange(scoped.row)" v-model="scoped.row.mg_state"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作">
            <template v-slot="scope">
              <!-- 修改按钮 -->
              <el-button
                size="mini"
                type="primary"
                icon="el-icon-edit"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
              <!-- 删除按钮 -->
              <el-button
                size="mini"
                type="danger"
                icon="el-icon-delete"
                @click="removueUserById(scope.row.id)"
              ></el-button>
              <!-- 分配角色按钮 -->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button
                  size="mini"
                  type="warning"
                  icon="el-icon-setting"
                  @click="setRole(scope.row)"
                ></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
      </template>
      <!-- 列表分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 5]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 添加用户对话框内容主体区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 添加用户对话框底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--   修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :rules="editFormRules" ref="editFormRef" :model="editForm" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }

      cb(new Error("请输入合法的邮箱"));
    };

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

      if (regMobile.test(value)) {
        return cb();
      }

      cb(new Error("请输入合法的手机号"));
    };
    return {
      // 用户列表参数对象
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少数据
        pagesize: 2
      },
      // 用户列表数据对象
      userList: [],
      // 共多少条数据
      total: 0,
      // 添加用户对话框的隐藏与显示
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: ""
      },
      //  添加用户表的的验证规则
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { min: 3, max: 6, message: "长度在 3 到 5 个字符", trigger: "blur" }
        ],
        password: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { min: 6, max: 15, message: "长度在 6 到 15 个字符", trigger: "blur" }
        ],
        email: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" }
        ],
        mobile: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色数据列表
      roleList: [],
      // 已选中的角色ID
      selectedRoleId:''
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo
      });
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg);
      this.userList = res.data.users;
      this.total = res.data.total;
      // console.log(res);
    },
    //  监听pagesize改变
    handleSizeChange(newSize) {
      // console.log(`每页 ${newSize} 条`)
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 简体页码改变事件
    handleCurrentChange(newNum) {
      // console.log(`当前页: ${newNum}`)
      this.queryInfo.pagenum = newNum;
      this.getUserList();
    },
    // 监听用户状态改变
    async userStateChange(state) {
      const { data: res } = await this.$http.put(
        `users/${state.id}/state/${state.mg_state}`
      );
      console.log(res);
      if (res.meta.status !== 200) {
        state.mg_state = !state.mg_state;
        return this.$message.error("修改状态失败");
      }
      this.$message.success("修改用户状态成功");
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return;
        // 发起添加用户请求
        const { data: res } = await this.$http.post("users", this.addForm);
        console.log(res);
        if (res.meta.status !== 201) return this.$message.error("添加用户失败");
        this.$message.success("添加用户成功");
        // 隐藏添加用户对话框
        this.addDialogVisible = false;
        // 从新获取用户列表数据
        this.getUserList();
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id);
      this.editDialogVisible = true;
      const { data: res } = await this.$http.get(`users/${id}`);
      // console.log(res);
      if (res.meta.status !== 200) {
        return this.$$message.error("查询用户信息失败");
      }
      this.editForm = res.data;
    },
    // 监听修改用户对话框关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败");
        }
        // 关闭对话框
        this.editDialogVisible = false;
        // 刷新数据列表
        this.getUserList();
        this.$message.success("更新用户信息成功");
      });
    },
    // 根据ID删除对应的用户信息
    async removueUserById(id) {
      // console.log(id);
      // 询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      // 如果用户按确认按钮，返回的是confirm
      //  如果用户按取消按钮，返回的是cancel
      // console.log(confirmResult);
      if (confirmResult !== "confirm") {
        return this.$message.info("已经取消了");
      }
      // console.log('确认取消了')
      const { data: res } = await this.$http.delete(`users/${id}`);
      console.log(res);
      if (res.meta.status !== 200) {
        this.$message.error("删除用户失败");
      }
      this.$message.success("删除用户成功");
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      // 在展示对话框前获取所有角色列表
      const { data: res } = await this.$http.get("roles");
      console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.erro("获取角色列表失败");
      }
      this.roleList = res.data;
      this.setRoleDialogVisible = true;
    },
    // 点击按钮，分配角色
    async saveRoleInfo (){
      if (!this.selectedRoleId){ return this.$message.error('请选择要分配的角色') } 
      const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
      console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error('更新失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed(){
      // console.log(111);
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
};
</script>

<style lang="less" scoped>
.el-card {
  margin-top: 20px;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.1) !important;
  .el-input {
    width: 350px;
    margin-right: 30px;
  }
}
</style>
